Paint brush edging attachment



D. F. KUMPMAN 3,341,879

Sept, 19, 1967 PAINT BRUSH EDGING ATTACHMENT Filed July 6. 1966 mum Q INVENTOR DA/V/EL F. Kl/MP/Wl/V United States Patent 3,341,879 PAINT BRUSH EDGING ATTACHMENT Daniel F. Kumpman, 151A Randolph Ave., Mine Hill, Dover, NJ. 07801 Filed July 6, 1966, Ser. No. 563,241 4 Claims. (Cl. 15-248) The invention herein disclosed is an edging attachment for paint brushes and particular objects of the invention have been to provide a simple and practical form of edger which could be readily applied to a conventional paint brush, which would accurately regulate the paint flowing action of the brush, which would yield as necessary to follow the outline of the trim or other outline to be followed and which would be readily retractable to clear the bristles when the brush is dipped into a paint can.

Other desirable objects accomplished by the invention and the novel features of construction, combination and relation of parts through which the objects are attained, are set forth and will appear in the course of the following specification.

The drawing accompanying and forming part of the specification illustrates a present practical embodiment of the invention. Structure, however, may be modified and changed as regards the immediate illustration; all within the true intent and scope of the invention as hereinafter defined and claimed.

FIG. 1 in the drawing is a side elevation of the attachment as applied to and in use on an ordinary paint brush, with the edging blade in normal guiding and protective position.

FIG. 2 is a similar view showing the edging blade fully retracted, as for dipping into a paint can.

FIG. 3 is a view showing the opposite side of the attachment on the brush.

FIG. 4 is a top plan view, taken as looking down on FIG. 1.

FIG. 5 is an end View of the attachment removed from the brush.

The edging device of this invention is made readily attachable to and removable from a paint brush by provision of an inverted U-shaped base arched to fit over the edge of a brush and carrying the essential parts of the device.

This base may be of spring sheet metal of arched formation at 7 and having extended side walls 8 and 9 to fit down over the sides of the brush head 10.

It is shown as adjustably and removably secured in this position by a knurled clamp screw 11 engaged in a screw seat in the side wall 9.

The edging blade 12 is pivotally and slidably mounted on the opposite side wall 8 by being longitudinally slotted at 13 to engage over a pivot stud 14 carried by and projecting from that wall, held in this relation by an overstanding confining washer 15 on the stud.

This freely slidable and pivoted support extends out over the flat side of the bristles 16 and carries a line gauge or guard 17, extending at a right angle from the upper edge of the blade, over the upper edge of the bristles.

This lining portion 17 of the edger normally rests against the upper edge of the bristles and extends fully across the body of bristles and has a curved or sloping edge 18, FIG. 4, to glide smoothly over the surface being painted.

The edger blade may be of yielding spring material so as to bend as needed under heavy lateral pressure on the brush.

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A lug 19, struck down from the lining edge 18, overlies the back side of the bristles to confine the edging blade laterally in respect tothe body of bristles.

The edging blade is yieldingly projected into the operative position shown in full lines in FIGS. 1 and 4 by a coiled spring 20 connected between the pivot stud 14 and the outstruck finger hold lug 21 on the inner end of the blade.

This spring is shown connected with the blade on a downwardly sloping angle, FIG. 1, so as to exert tension both to project the blade and to lift the inner end of the blade, and thus to yieldingly hold the projecting end of the blade down over the top of the bristles.

FIG. 2 shows how the blade may be retracted to clear it of the bristles as when dipping into a paint can and this View also shows how the tilting of the blade may be limited by a lug 22, struck out of the wall 8 in position to be slidably engageable by the lower edge of the blade.

FIGS. 1 and 2 also show how the lower edge of the blade has a downwardly inclined cam formation 23- which by engagement with lug 22 will rock the blade about the pivot center to lower the free end of the blade into protective position over the brush as the spring shifts the blade into the projected position.

The projecting handle lug 21 provides .a convenient finger or thumb grip for retracting the blade into a position clear of the bristles.

The edging blade is yieldingly held in proper position to guide and guard the bristles against overrunning of the paint, and is yieldable to conform to outlines of trim, window sash, corners or boundaries of different outlines.

The base can be longitudinally adjusted on the brush to set the guard or liner in accordance with the length of the bristles and the attachment as a Whole is quickly and easily removable or replaceable.

The device consists of but few, simple inexpensive parts which can be readily assembled and kept clean.

What is claimed is:

1. An edging attachment for paint brushes comprising an inverted U-form base arched to fit over one edge and extend over opposite sides of the head of a paint brush,

a clamp on one side of said base in position for holding engagement with a brush to which the attachment is applied,

a stud projecting from the opposite side of said arched base,

a longitudinally slotted blade in pivotal sliding engagement over said stud,

a spring connected between said stud and blade for projecting said blade over the bristles of the brush,

said blade having an angularly projecting lining extension at the free end of the same projecting across the body of the bristles and having a lining edge curved to ride over the surface painted by the brush.

2. The invention according to claim 1 in which said angularly projecting extension has an angularly projecting lug at the lining edge of the same for extending downward over the back of the bristles of a brush to which the attachment is applied.

3. The invention according to claim 1 with 2. lug struck out of the side of the base on which the stud is mounted in position for sliding engagement by the edge of said blade for limiting the angular pivoting movement of the blade.

4. The invention according to claim 3 in which the edge of the blade in sliding engagement with said lug is inclined in the form of a cam for holding the blade in 3 4 protectiva position over the brush when projected by said 2,820,237 1/1958 Maslaney 15248 p 2,900,657 8/1959 Grudent 15248 References 2,952,863 9/1960 Klecki 15 24s UNITED STATES PATENTS i p i 5 Primary Examiner.

1,927,962 9/1933 Tamplin 15166 PETER FELDMAN, Assistant Examiner. 

1. AN EDGING ATTACHMENT FOR PAINT BRUSHES COMPRISING AN INVERTED U-FORM BASE ARCHED TO FIT OVER ONE EDGE AND EXTEND OVER OPPOSITE SIDES OF THE HEAD OF A PAINT BRUSH, A CLAMP ON ONE SIDE OF SAID BASE IN POSITION FOR HOLDING ENGAGEMENT WITH A BRUSH TO WHICH THE ATTACHMENT IS APPLIED, A STUD PROJECTING FROM THE OPPOSITE SIDE OF SAID ARCHED BASE, A LONGITUDINALLY SLOTTED BLADE IN PIVOTAL SLIDING ENGAGEMENT OVER SAID STUD, A SPRING CONNECTED BETWEEN SAID STUD AND BLADE FOR PROJECTING SAID BLADE OVER THE BRISTLES OF THE BRUSH, SAID BLADE HAVING AN ANGULARLY PROJECTING LINING EXTENSION AT THE FREE END OF THE SAME PROJECTING ACROSS THE BODY OF THE BRISTLES AND HAVING A LINING EDGE CURVED TO RIDE OVER THE SURFACE PAINTED BY THE BRUSH. 